Merge pull request #261 from ruby-i18n/dependabot/bundler/rdoc-6.3.4.1

Bump rdoc from 6.3.3 to 6.3.4.1

Author: movermeyer

Gemfile.lock

@@ -75,7 +75,7 @@ GEM
     rainbow (3.1.1)
     rake (13.0.1)
     rchardet (1.8.0)
-    rdoc (6.3.3)
+    rdoc (6.3.4.1)
     regexp_parser (2.6.1)
     reline (0.3.3)
       io-console (~> 0.5)